ProfilePress 3.0 - 3.1.3 - Unauthenticated Privilege Escalation
Priority CRITICAL 86CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269 and CWE-306.
Summary
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.68862 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ProfilePress | ProfilePress | 3.0.0 - 3.1.3 | — | No fix listed | CNA |
- ProfilePress VendorProfilePress Affected 3.0.0 - 3.1.3 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:properfraction:profilepress:*:*:*:*:*:wordpress:*:* | 3.0.0 – 3.1.3 | Vulnerable | properfraction |
- cpe:2.3:a:properfraction:profilepress:*:*:*:*:*:wordpress:*:* Versions 3.0.0 – 3.1.3 Vulnerable ·properfraction
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34621
- 2026-10-03 Alias added: GHSA-h9qm-fw5r-9vmm
References
More ProfilePress vulnerabilities
- TI-2021-13638 ProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in File Uploader Component CVSS 3.1CRITICAL 9.8
- TI-2021-13637 ProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in Image Uploader Component CVSS 3.1CRITICAL 9.8
- TI-2021-13636 ProfilePress 3.0 - 3.1.3 - Authenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2019-11286 The peters-login-redirect plugin before 2.9.2 for WordPress has CSRF. CVSS 3.0HIGH 8.8
- TI-2021-07234 ProfilePress < 3.2.3 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2021-07233 ProfilePress < 3.2.3 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-34621 · CVE Program
- CVE-2021-34621 · NVD
- FIRST EPSS
- GHSA-h9qm-fw5r-9vmm · GitHub Advisory Database · CC BY 4.0
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